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Electrical and electronic engineering, Communication engineering and systems, telecommunications
An ultra-wideband solar Vivaldi antenna is proposed. Cut from amorphous silicon cells, it maintains a peak power at 4.25 V which overcomes a need for lossy power management components. The wireless communications device can yield solar energy or function as a rectenna for dual-source energy harvesting. The solar Vivaldi performs with 0.5 - 2.8 dBi gain from 0.95 - 2.45 GHz and in rectenna mode, it covers three bands for wireless energy scavenging.
O'Conchubhair, O., Yang, K, McEvoy, P & Ammann, Max. (2016) Amorphous Silicon Solar Vivaldi Antenna, IEEE Antennas and Wireless Propagation Letters, vol. 15, pp. 893-896. doi: 10.1109/LAWP.2015.2479189.